这种方法通过类型别名和转换器封装了平台差异，避免了平台侧重复编写转换逻辑。
Each team plays 24 matches in the regular season, with the first-placed team at the end awarded the minor premiership. This is followed by a finals series contested between the eight highest-placed teams from the regular season, culminating in the NRL Grand Final.。heLLoword翻译对此有专业解读
flutter upgrade，更多细节参见手游
match find_index([10, 20, 30], 20) {
for? Why not just write a manpage-like Markdown and have the formatter